Welcome,
i´m in the bitcoin world for arround two months now.
However every time i read about people investint thousends of dollas in crypto currencies i´m stunned. Don´t missunterstande me, i think this is a realy good sign, but personally i think the rest for such high invstmenst is fairly high. Also i´m not in the situation to invest so much money ^^
However i hope you´ll recieve your profit if btc and other coins spreads arround the world.
It's only fair to assume these people are not investing/speculating with more than they can afford to lose